How Long Does Grief Last?

People usually ask this question for one of two reasons. Either it has been a while and it still hurts, or someone has hinted that it has been long enough.

The health sources used for this guide do not give a deadline, and this guide does not either. What research can offer is a picture of how grief tends to change, and of the point at which clinicians start to pay attention to how long it has gone on.

Is there a normal length of time to grieve?

No agreed one. The National Cancer Institute (NCI) tells health professionals that "there is no clear agreement on any specific time period needed for recovery," and that most bereaved people will notice a lessening of symptoms after about 6 months. Its version for patients says: "Recovery time will vary with each person. For most bereaved people, symptoms lessen between 6 months and 2 years after the loss."

Those are broad ranges describing what happens for most people. They are not targets. Care Dimensions, a hospice serving Greater Boston, puts it this way in its grief support FAQ: "There is no timeframe for how long one 'should' grieve or how long it takes to feel better."

Does "lessen" mean it ends?

No. The sources above describe grief becoming less frequent and less intense. They do not say it stops. The National Institute on Aging says: "As time passes, you may still miss your loved one. But for most people, the intense pain will lessen. There will be good and bad days."

Grief also does not fade in a straight line. The American Psychiatric Association notes that feelings and symptoms of grief "may sometimes increase at different points in time." The NCI describes waves of grief set off by holidays, the anniversary of the death, or giving away the person's belongings. A hard week in the third year is not a return to the beginning. The guide to grief on anniversaries and holidays covers those dates.

One research group describes the usual direction as a move from acute grief to "integrated grief," in which a person "is able to reengage with everyday activities and find interest or pleasure." The loss stays with you. It takes up less of the day.

What do studies of grief over time show?

A few studies have followed people through the months after a loss. Each describes its own sample and should not be read as a forecast for you.

In the Yale Bereavement Study, 233 people in Connecticut were assessed from 1 to 24 months after a death from natural causes. Yearning was the strongest painful reaction throughout, and the authors noted that the painful reactions all peaked within about 6 months of the loss. Acceptance increased across the whole period.

A study led by George Bonanno followed 205 older adults from several years before their spouse died to 18 months afterward, and sorted them by depression scores. People took noticeably different paths. The most frequent pattern, seen in 45.9% of the group, was stable, low depression scores, which the researchers called resilience. Another 15.6% had what they called chronic grief. A later review of 54 studies of loss and other potentially traumatic events, not bereavement alone, also found that a resilient pattern was the most common, averaging 65.7% across the groups studied.

Read "resilient" carefully. In these studies it means symptom scores that stayed low. It does not mean the person did not love, miss or hurt. In these samples, feeling steadier early on was not unusual. It is no sign that you cared less.

When does duration become something clinicians look at?

A small minority of bereaved people have grief that stays intense and disabling. Since March 2022 the American diagnostic manual, DSM-5-TR, has included prolonged grief disorder for this. For adults, the death must have occurred at least 12 months ago. The World Health Organization's ICD-11 uses a minimum of 6 months.

Time alone is never enough for the diagnosis. Under DSM-5-TR, clinicians also look for:

• Intense yearning for the person, or preoccupation with thoughts and memories of them, nearly every day for at least the last month
• At least 3 of 8 further symptoms, such as feeling that part of oneself has died, emotional numbness, intense loneliness, or feeling that life is meaningless
• Significant distress, or trouble functioning at work, with other people or in other important areas
• A reaction that clearly goes beyond what the person's own culture and context would expect

The American Psychiatric Association estimates that 4% to 15% of bereaved adults experience this. Only a clinician can assess it, and reaching the one-year mark while still grieving is not a diagnosis. The guide to prolonged grief disorder explains the criteria in plain words.

Do some losses tend to be harder for longer?

The American Psychiatric Association says the risk of prolonged grief disorder is greater when a death is very sudden or happens under unnatural circumstances. It also lists higher risk for people who have lost a child or a spouse or partner, people who were very close to or emotionally dependent on the person who died, people with a history of depression, and people without much social support.

These are patterns across large groups. They raise the odds and decide nothing for any one person. Many people who lose a child or a partner, or who lose someone suddenly, grieve hard and do not develop a disorder.

What if you are worried about how long it has been?

Start with how you are living, not with the calendar. The questions clinicians care about are whether the pain is easing at all over time, and whether you can work, look after yourself and be with other people.

Most people do not need therapy for grief. The American Psychiatric Association says grief symptoms "do not usually require mental health treatment." Some people still want a place to talk, and you do not have to pass a test to deserve one. The National Institute on Aging advises that if sadness is making it difficult to carry on day to day, you can reach out to a support group, a mental health professional or the people close to you.

Dr. Rabin does not set a timeline for grief and loss therapy. Some people come for weeks or months around a loss, and for others the work becomes longer term. She offers a free initial phone consultation of about 15 minutes, which you can arrange through the contact page.

If grief has brought thoughts of not wanting to live, call or text 988, or call 911 in an emergency.

Keep reading

• Prolonged Grief Disorder: When Grief Does Not Ease
• Do I Need Grief Therapy?
• Grief vs. Depression: How to Tell the Difference
• All grief and loss guides

Sources

• National Cancer Institute, Grief, Bereavement, and Coping With Loss (PDQ), Health Professional Version (2024)
• National Cancer Institute, Grief, Bereavement, and Loss (PDQ), Patient Version (2025)
• American Psychiatric Association, Prolonged Grief Disorder (2025)
• National Institute on Aging, Coping With Grief and Loss (2024)
• Bonanno, Wortman, Lehman, Tweed, Haring, Sonnega, Carr and Nesse, Resilience to loss and chronic grief: a prospective study from preloss to 18-months postloss, Journal of Personality and Social Psychology (2002)
• Maciejewski, Zhang, Block and Prigerson, An empirical examination of the stage theory of grief, JAMA (2007)
• Prigerson, Boelen, Xu, Smith and Maciejewski, Validation of the new DSM-5-TR criteria for prolonged grief disorder and the PG-13-Revised (PG-13-R) scale, World Psychiatry (2021)
• Galatzer-Levy, Huang and Bonanno, Trajectories of resilience and dysfunction following potential trauma: A review and statistical evaluation, Clinical Psychology Review (2018)
• Care Dimensions, Grief Support Frequently Asked Questions

Last reviewed October 2026. This guide is general information, not medical advice or a diagnosis. If you are in crisis, call or text 988, or call 911 in an emergency.